1978Flipped from RepublicanFinal results
1978 election for Wisconsin Assembly District 66
Wisconsin State Assembly · Wisconsin
Mary K. Wagner (D) won with 55.5% of the vote, defeating Donald K. Gallagher (R) by 11.0 points, a seat Republicans won last time.
Mary K. WagnerDemocrat · winner
55.5%7,401
Donald K. GallagherRepublican
44.5%5,931
13,332 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET